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package com.oracle.truffle.api.test.polyglot;

import org.graalvm.polyglot.HostAccess;
import org.graalvm.polyglot.HostAccess.Export;
import org.graalvm.polyglot.Value;
import org.junit.Test;

import static org.junit.Assert.assertEquals;
import static org.junit.Assert.assertFalse;

public class HostRecordAccessTest extends AbstractHostAccessTest {

    public interface PointContract {
        @Export
        int x();

        @Export
        int y();

        @Export
        default int z() {
            return 44;
        }
    }

    public record PointRecord(@Export int x, @Export int y) implements PointContract {
    }

    // Workaround for eclipse formatter indentation issue.
    // @formatter:off
    public record GetterPointRecord(int x, int y) implements PointContract {
        @Export
        @Override
        public int x() {
            return x;
        }

        @Export
        @Override
        public int y() {
            return y;
        }
    }
    // @formatter:on

    public record BarePointRecord(int x, int y) implements PointContract {
    }

    record PrivatePointRecord(@Export int x, @Export int y) implements PointContract {
    }

    public record PointRecordNoInterface(@Export int x, @Export int y) {
    }

    @Test
    public void testRecordExportsNoInterface() {
        setupEnv(HostAccess.EXPLICIT);

        Value point = context.asValue(new PointRecordNoInterface(42, 43));
        assertEquals(42, point.invokeMember("x").asInt());
        assertEquals(43, point.invokeMember("y").asInt());
    }

    @Test
    public void testRecordExportsWithInheritance() {
        setupEnv(HostAccess.newBuilder(HostAccess.EXPLICIT).allowAccessInheritance(true).build());

        Value point;
        point = context.asValue(new PointRecord(42, 43));
        assertEquals(42, point.invokeMember("x").asInt());
        assertEquals(43, point.invokeMember("y").asInt());
        assertEquals(44, point.invokeMember("z").asInt());

        point = context.asValue(new GetterPointRecord(42, 43));
        assertEquals(42, point.invokeMember("x").asInt());
        assertEquals(43, point.invokeMember("y").asInt());
        assertEquals(44, point.invokeMember("z").asInt());

        point = context.asValue(new BarePointRecord(42, 43));
        assertEquals(42, point.invokeMember("x").asInt());
        assertEquals(43, point.invokeMember("y").asInt());
        assertEquals(44, point.invokeMember("z").asInt());

        point = context.asValue(new PrivatePointRecord(42, 43));
        assertEquals(42, point.invokeMember("x").asInt());
        assertEquals(43, point.invokeMember("y").asInt());
        assertEquals(44, point.invokeMember("z").asInt());
    }

    @Test
    public void testRecordExportsWithNoInheritance() {
        setupEnv(HostAccess.newBuilder(HostAccess.EXPLICIT).allowAccessInheritance(false).build());

        Value point;
        point = context.asValue(new PointRecord(42, 43));
        assertEquals(42, point.invokeMember("x").asInt());
        assertEquals(43, point.invokeMember("y").asInt());
        assertEquals(44, point.invokeMember("z").asInt());

        point = context.asValue(new GetterPointRecord(42, 43));
        assertEquals(42, point.invokeMember("x").asInt());
        assertEquals(43, point.invokeMember("y").asInt());
        assertEquals(44, point.invokeMember("z").asInt());

        point = context.asValue(new BarePointRecord(42, 43));
        assertFalse(point.hasMember("x"));
        assertFalse(point.hasMember("y"));
        assertFalse(point.canInvokeMember("x"));
        assertFalse(point.canInvokeMember("y"));
        assertEquals(44, point.invokeMember("z").asInt());

        point = context.asValue(new PrivatePointRecord(42, 43));
        assertFalse(point.canInvokeMember("x"));
        assertFalse(point.canInvokeMember("y"));
        assertEquals(44, point.invokeMember("z").asInt());
    }
}
